i always get the plate hot and pour salt over it and wait for the salt to go brown, scrape all the salt off
and wash it down with beer , than when your finished cooking, scrape
it down again and spray it with cooking oil when it cools down, and cover it
then it's all oiled and ready to go for the next bbq.
cheers marty.
p.s. don't forget to drink the leftover beer.